posting forms hangs php.exe

Hi, I have this problem using this example: <? if ( isset( $_REQUEST['test']) ) { $ttt = $_REQUEST['test']; } else { ?> <form action=test.php method=post> <textarea name=test></textarea> <input type=submit> </form> <? } ?> I've found the same bug reported on php.net (#21660), it's the same test.php. but my PHP version is 4.3.10. server is microsoft windows 2000. IIS is version 5. I use php as CGI. I've tried many versions of php (4.3.11dev, 4.3.7, and 4.3.3 on this server) anytime I've got the same problem on this server. I don't have this problem on another server with php version 4.3.3... so the problem I think it's on IIS. The textarea posted hang php when it contains a text longer than 377 bytes. Do I have to post other data to you so you can understand better? I think the problem deals with POST forms (i've made another test with a list of checkbox and when i check all the checkboxes the php.exe hangs, if i check only a few checkbox anything works fine) I've been searching for 2 days... and it seems an old bug... why it's on my 4.3.10 version? I hope you can help me. thank you very much. giulio